feat(wayland): add idle inhibitor for wayland

meson.build

@@ -7,16 +7,51 @@ add_project_arguments([
 srcfiles = files(
   'src/main.c',
   'src/led.c',
+  'src/wayland.c',
   'src/acpi.c',
   'src/utils.c'
 )
 
+# wayland stuff
+wscanner = dependency('wayland-scanner', native: true)
+wscanner_prog = find_program(
+  wscanner.get_variable('wayland_scanner'), native: true)
+
+wayland_protocols = dependency('wayland-protocols', version: '>=1.41',
+                               default_options: ['tests=false'])
+wayland_protocols_datadir = wayland_protocols.get_variable('pkgdatadir')
+wayland_client = dependency('wayland-client')
+wayland_server = dependency('wayland-server')
+wl_proto_c = []
+wl_proto_h = []
+wl_proto_xml = [
+  wayland_protocols_datadir / 'unstable/idle-inhibit/idle-inhibit-unstable-v1.xml'
+  ]
+
+foreach prot : wl_proto_xml
+  wl_proto_h += custom_target(
+    prot.underscorify() + '-client-header',
+    input: prot,
+    output: '@BASENAME@.h',
+    command: [ wscanner_prog, 'client-header', '@INPUT@', '@OUTPUT@' ])
+
+  wl_proto_c += custom_target(
+    prot.underscorify() + '-private-code',
+    input: prot,
+    output: '@BASENAME@.c',
+    command: [ wscanner_prog, 'private-code', '@INPUT@', '@OUTPUT@' ])
+endforeach
+
+# build stuff
 cc = meson.get_compiler('c')
 math_dep = cc.find_library('m', required: true)
 
 executable('eh', srcfiles,
+  wl_proto_c + wl_proto_h,
   dependencies: [
-    math_dep
+    math_dep,
+    wayland_client,
+    wayland_server
   ],
   include_directories: [
     'lib/log.c/src',